Cooling system of LED light bar

The invention discloses a cooling system of an LED light bar. The system comprises a light bar automatic cooling device and a temperature control unit; the light bar automatic cooling device is internally provided with a cooling mechanism capable of lowering the surface temperature of the LED light bar, the cooling mechanism is in electric connection with the temperature control unit, and the feeding end and the discharging end of the light bar automatic cooling device are connected with a transferring mechanism; after being welded through a welding device (reflow brazier), the LED light bar is automatically transferred to the light bar automatic cooling device by the transferring mechanism, the surface temperature of the LED light bar in the automatic cooling device is lowered below 30 DEG C by the cooling mechanism and the temperature control unit, and the temperature-lowering process lasts for not more than 5 min; and the quick and efficient effects are achieved, controllability is high, manual carrying is